Omega Engineering DIGITAL INPUT/OUTPUT PCI-DIO96 - Manual (Page 22)

Interrupts
The interrupt control registers function with the four 82C55 devices and the
82C54 counter timer to provide interrupt sources.
1. 82C55 in Mode 1 or Mode 2 Interrupt configuration:
•
First Port C0
•
First Port C3
•
Second Port C0
•
Second Port C3
•
Third Port C0
•
Third Port C3
•
Fourth Port C0
•
Fourth Port C3
Note: Any interrupt source above can be individually
enabled.
2. 82C54 Counter
•
Counter 1 OUT
•
Counter 2 OUT
Note: Counters 1 and 2 interrupts are exclusive. Only
one counter can be enabled as an interrupt source at any
given time.
Interrupt sources
Rising / falling edge. Programmable through PLX-9052
High or low level. Programmable through PLX9052 Interrupt polarity
Programmable through PLX9052 INTCSR PCI Interrupt enable
INTA# - mapped to IRQn via PCI BIOS at boot-time Interrupt
Crystal Oscillator
±100 ppm Frequency stability
16 MHz Frequency
AT-cut crystal Oscillator type
Environmental
0 to 95% non-condensing Humidity
−
40 to 70°C Storage temperature range
0 to 70°C Operating temperature range
Mechanical
PCI short card: 136.0mm(L) x 100.6mm(W) x11.00mm(H) Card dimensions
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